Boiling stones "resistent", bottle of 50 g, ca. 1850 pieces

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Resistent" boiling stones for preparative and analytical work

In biochemistry, biotechnology, microbiology and microanalysis.
For vacuum and high-vacuum distillations.
Absolute resistance to the strongest acids, lyes, solvents and oxidation agents.
No abrasion and no absorption of substances.
Sterilization by burn-out, softening at 2500°C.
Effective in very small quantities of liquid.